Leptus (Leptus) stefani HAITLINGER 1991

Haitlinger, Ryszard & Šundić, Miloje, 2016, Redescription of Leptus (Leptus) mariani HAITLINGER 1991 and L. (L.) stefani HAITLINGER 1991 (Trombidiformes: Prostigmata: Erythraeidae), Linzer biologische Beiträge 48 (2), pp. 1197-1206 : 1199

Leptus (Leptus) stefani HAITLINGER 1991

T y p e m a t e r i a l e x a m i n e d: holotype (larva), locality unknown, Colombia from Ptychoderes sp. ( Coleoptera : Anthribidae ). The original description incorrectly listed the host as Ptychoderes speciosus, J. The holotype is deposited in Museum of Natural History, Wrocław University MNHWU), Poland.

D i a g n o s i s: One palpfemorala and palpenuala, 4 setae between coxae II-III, AW 119, PW 150, AL 95, PL 121, GL 277, Ti III 360, Ta III with 2φ.

R e d e s c r i p t i o n (larva): (Standard measurements are presented in Table 1). Dorsal side of idiosoma with 42 barbed setae. A pair of anterolateral eyes, not on platelets (Fig. 9). Scutum slightly wider than long, punctuate with cuticular line at base of posterior sensillae (PSE). Anterior border straight, posterolateral borders slightly concave. Scutalae AL and PL each with numerous setules. Anterior sensillae (ASE) distinctly shorter than posterior sensillae, both with setules in distal half (Fig. 11).

Ventral surface of idiosoma bearing one pair of 1a setae between coxae I, one pair of 2a setae between coxae II, 4 setae between coxae II-III and 24 setae beyond coxae III, all setae barbed. Setae 1b are more than twice as long as setae 2b and distinctly longer than setae 3b, all setae barbed (Fig. 10)

Gnathosoma with a pair of smooth hypostomalae (as) and a pair of smooth galealae (cs). Palptrochanter without setae, palpfemur and palpgenu each with one barbed seta. Palptibia with 2 barbed setae, one nude seta and odontus (Fig. 12). Palptarsus with 3 barbed and 3 nude setae, ω and ζ. Supracoxalae (elcp) present (Fig. 13).

Leg setal formula: Leg I: Ta 1ω, 2ζ, 21B; Ti 2φ, 1κ, 14B; Ge 1σ, 1κ, 8B; Tf 5B; Bf 2B; Tr 1B; Cx 1B (Fig. 14). Leg II: Ta 1ω, 2ζ, 23B; Ti 2φ, 14B; Ge 1κ, 8B; Tf 5B; Bf 2B; Tr 1B; Cx 1B (Fig. 15). Leg III: Ta 1ζ, 26B; Ti 2φ, 14B; Ge 8B; Tf 5B; Bf 1B; Tr 1B; Cx 1B (Fig. 16), solenidion I (ω) 48, distal solenidion (φ) I 39 μm, proximal solenidion (φ) I 63 μm. Legs length: I 1244, II 11136, III 1317. IP = 3697. Supracoxalae (elc) present on dorsal side, in terminal part of coxae I.

R e m a r k s Leptus (Leptu s) stefani belongs to group species (in Neotropical Region only) with one palpgenuala and palpfemorala, two setae between coxae I and coxae II, four setae between coxae II and III and Ti III with two solenidia. In this group is known also L. (L.) filipinae. It differs from this species in longer L (174 vs. 92-112), W (190 vs. 86-95), AL (95 vs. 52-58), PL (122 vs. 72-80), ISD (110 vs. 60-64), AP (40 vs. 15-20), GL (277 vs. 172-192) and Ti III (360 vs. 218-238).